High-harmonic generation by electric polarization, spin current, and magnetization

  title={High-harmonic generation by electric polarization, spin current, and magnetization},
  author={Tatsuhiko N. Ikeda and Masahiro Sato},
  journal={Physical Review B},
High-harmonic generation (HHG), a typical nonlinear optical effect, has been actively studied in electron systems such as semiconductors and superconductors. As a natural extension, we theoretically study HHG from electric polarization, spin current, and magnetization in magnetic insulators under terahertz or gigahertz electromagnetic waves. We use simple one-dimensional spin-chain models with or without multiferroic coupling between spins and the electric polarization, and study the dynamics… 

Generation of DC, AC, and Second-Harmonic Spin Currents by Electromagnetic Fields in an Inversion-Asymmetric Antiferromagnet

Manipulating spin currents in magnetic insulators is a key technology in spintronics. We theoretically study a simple inversion-asymmetric model of quantum antiferromagnets, where both the exchange

High-harmonic generation in spin and charge current pumping at ferromagnetic or antiferromagnetic resonance in the presence of spin-orbit coupling

One of the cornerstone effects in spintronics is spin pumping by dynamical magnetization that is steadily precessing (around, e.g., the z -axis) with frequency ω 0 , due to absorption of low-power

Spin-current version of solar cells in non-centrosymmetric magnetic insulators

Photovoltaic effect, e.g., solar cells, converts light into DC electric current. This phenomenon takes place in various setups such as in noncentrosymmetric crystals and semiconductor pn junctions.

Nonlinear Analog Spintronics with van der Waals Heterostructures

The current generation of spintronic devices, which use electron-spin relies on linear operations for spin-injection, transport and detection processes. The existence of nonlinearity in a spintronic

High-harmonic generation in spin-orbit coupled systems

We study high-harmonic generation in two-dimensional electron systems with Rashba and Dresselhaus spin-orbit coupling and derive harmonic generation selection rules with the help of group theory.

Nonlinear dynamical response of interacting bosons to synthetic electric field

We theoretically study the non-linear response of interacting neutral bosonic gas in a synthetically driven one-dimensional optical lattice. In particular, we examine the bosonic analogue of

Light-wave control of correlated materials using quantum magnetism during time-periodic modulation of coherent transport

Light–wave quantum electronics utilizes the oscillating carrier wave to control electronic properties with intense laser pulses. Without direct light–spin interactions, however, magnetic properties

Two-photon driven magnon-pair resonance as a signature of spin-nematic order

We theoretically study the nonlinear magnetic resonance driven by intense lasers or electromagnetic waves in a fully polarized frustrated magnet near a less-visible spin-nematic ordered phase. In

High-harmonic generation in one-dimensional Mott insulators

We study high-harmonic generation (HHG) in the one-dimensional Hubbard model in order to understand its relation to elementary excitations as well as the similarities and differences to

Generation and manipulation of chiral terahertz waves in the three-dimensional topological insulator Bi2Te3

Abstract. Arbitrary manipulation of broadband terahertz waves with flexible polarization shaping at the source has great potential in expanding numerous applications, such as imaging, information



High-harmonic generation in quantum spin systems

We theoretically study the high-harmonic generation (HHG) in one-dimensional spin systems. While in electronic systems the driving by ac electric fields produces radiation from the dynamics of

Theory for shift current of bosons: Photogalvanic spin current in ferrimagnetic and antiferromagnetic insulators

We theoretically study the optical generation of dc spin current (i.e., a spin-current solar cell) in ordered antiferromagnetic and ferrimagnetic insulators, motivated by a recent study on the

Rectification of Spin Current in Inversion-Asymmetric Magnets with Linearly Polarized Electromagnetic Waves.

Using a nonlinear response theory, it is found that a dc spin current is generated by the linearly polarized waves, and shows rich anisotropic behavior depending on the direction of the electromagnetic wave.

Direct electronic measurement of the spin Hall effect

Electrical measurements of the spin Hall effect in a diffusive metallic conductor are reported, using a ferromagnetic electrode in combination with a tunnel barrier to inject a spin-polarized current to reveal opportunities for efficient spin detection without the need for magnetic materials.

Nonequilibrium Magnetic Oscillation with Cylindrical Vector Beams

This paper theoretically proposes an experimental method of measuring the magnetic oscillation in a magnetic-order-resolved way by using the azimuthal cylindrical vector (CV) beam, an example of topological lightwaves, and argues that this characteristic focusing property and the discrepancy in the relaxation timescale between conduction electrons and localized magnetic moments allow it to develop the nonequilibrium analogue of the Magnetic oscillation measurement.

Polarization-Resolved Study of High Harmonics from Bulk Semiconductors.

A two-dimensional single-band model is developed to show that the anisotropic curvature of an energy band of solids, which is pronounced in an outer part of the Brillouin zone, induces the generation of the perpendicular odd harmonics.

Nonlinear charge oscillation driven by a single-cycle light field in an organic superconductor

Application of an intense light field to solids produces enormous and ultrafast nonlinear phenomena such as high-harmonic generation1,2 and attosecond charge dynamics3,4. These are distinct from

Large-Amplitude Spin Dynamics Driven by a THz Pulse in Resonance with an Electromagnon

The results show that it is possible to directly manipulate atomic-scale magnetic structures with the electric field of light on a sub-picosecond time scale.

Nonlinear spin control by terahertz-driven anisotropy fields

Future information technologies, such as ultrafast data recording, quantum computation or spintronics, call for ever faster spin control by light1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16.

High-harmonic generation from Bloch electrons in solids

We study the generation of high-harmonic radiation by Bloch electrons in a model transparent solid driven by a strong midinfrared laser field. We solve the single-electron time-dependent